CN102135690B - Edge electric filed switching type liquid crystal display device - Google Patents
Edge electric filed switching type liquid crystal display device Download PDFInfo
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- CN102135690B CN102135690B CN2011100219867A CN201110021986A CN102135690B CN 102135690 B CN102135690 B CN 102135690B CN 2011100219867 A CN2011100219867 A CN 2011100219867A CN 201110021986 A CN201110021986 A CN 201110021986A CN 102135690 B CN102135690 B CN 102135690B
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Abstract
The invention discloses an edge electric filed switching type liquid crystal display device which comprises a first substrate and a second substrate, wherein gate lines and data lines which are mutually crossed are arranged on the first substrate to form a pixel region; a thin film transistor is arranged on the first substrate and connected with the gate lines and the data lines; a common electrode is arranged on the first substrate and positioned in the pixel region; a pixel electrode has an annular structure which is arranged on the common electrode and partially overlapped with the common electrode; the pixel electrode is connected with the thin film transistor; the compensating structure of the pixel electrode is arranged in the non-overlapping region of the pixel electrode and the common electrode; the compensating structure of the pixel electrode is connected with the pixel electrode; the second substrate is arranged corresponding to the first substrate; and a liquid crystal layer is arranged between the first substrate and the second substrate.
Description
[technical field]
The present invention relates to a kind of liquid crystal indicator, particularly a kind of fringe field switch type lcd device of high penetration (fringe field switching type LCD is called for short FFS-LCD).
[background technology]
At present, use liquid crystal display (LCD) to become a kind of trend, liquid crystal display has high image quality, preferably space availability ratio, low consumpting power, the advantageous characteristic such as radiationless, along with the technology of liquid crystal display is increasingly mature, also make liquid crystal display be applied in every field widely.Traditional stable twisted nematic liquid crystal display (TN-LCD), pixel electrode is arranged on first substrate, and common electrode is arranged on second substrate, liquid crystal layer arrange with this first substrate and second substrate between, thereby rotate and realize picture disply by pixel electrode and common electrode being applied in the Control of Voltage liquid layer liquid crystal molecule; But TN-LCD, owing to there being the defect that visual angle is narrow, is unfavorable for being applied on the large scale liquid crystal display.
In recent years, lateral electric field type liquid crystal display (IPS-LCD) technology with wide viewing angle characteristic is suggested, pixel electrode and common electrode in IPS-LCD all are arranged on first substrate, and pixel electrode and common electrode on same plane with the interlaced arrangement of the mode of comb poles; Because IPS-LCD has the picture disply of wide viewing angle, so more use on the large scale liquid crystal display and apply, but there is the shortcoming that light transmittance is low in traditional IPS-LCD, affects the picture display effect of liquid crystal display.
In view of this, a kind of lcd technology of IPS-LCD modified form is suggested, i.e. edge electric field switch-type liquid crystal display (FFS-LCD).Fig. 1 is the diagrammatic cross-section of prior art FFS-LCD, first substrate 11 and second substrate 12 be corresponding the setting mutually, liquid crystal layer 13 is arranged between first substrate 11 and second substrate 12, common electrode 14 and pixel electrode 16 all are arranged on first substrate 11, and insulation course is established 15 and is arranged between common electrode 14 and pixel electrode 16; This FFS-LCD is characterised in that the distance that can shorten between adjacent common electrode 14 and pixel electrode 16, make the distance between adjacent common electrode 14 and pixel electrode 16 be less than the width of common electrode 14 or pixel electrode 16, also be less than spacing between first substrate 11 and second substrate 12, and common electrode 14 and pixel electrode 16 form by transparent conductive material, effectively increased light transmittance thereby so can obtain well-proportioned electric field in whole liquid crystal layer, but the design of this kind of electrode structure easily produces the defect of colour cast (color shift).The structure of existing FFS-LCD has been disclosed in US 6466290 and US 6522380, does not repeat them here.
The schematic top plan view of the FFS-LCD electrode structure that Fig. 2 is prior art.As shown in Figure 2 in the FFS-LCD electrode structure, gate line 21 and data line 22 are interlaced to be arranged on first substrate 20, picture element region 23 is by gate line 21 and data line 22 is interlaced forms, common electrode 24 has an approximate rectangular shape and is arranged in picture element region 23, pixel electrode 25 partly overlaps and is arranged in picture element region 23 with common electrode 24, and this pixel electrode 25 is a cirque structure, thin film transistor (TFT) 26 is arranged on the infall of gate line 21 and data line 22, and pixel electrode 25 is connected with thin film transistor (TFT) 26 by connecting electrode 27.In the pixel electrode structure of this FFS-LCD, due to the design of pixel electrode toroidal, can make it obtain wider angular field of view, and can overcome the generation of colour cast defect; But also there are some defects in the design of these pixel electrode 25 toroidals, four corner A that are picture element region 23 only have common electrode 24 to arrange and do not have pixel electrode 25 to arrange, executing in alive situation, the liquid crystal molecule that is positioned at picture element region 23 A places, corner can not be controlled effectively and produce the LCD alignment disorder, cause brightness to show uneven, particularly the dark state of low GTG shows partially bright defect, thereby the liquid crystal display display quality is descended.
[summary of the invention]
The invention provides a kind of fringe field switch type lcd device, the problem that it can solve LCD alignment disorder in prior art, be controlled effectively the orientation of liquid crystal molecule.
Fringe field switch type lcd device of the present invention can obtain uniform brightness and show, improves the dark state of low GTG and shows partially bright defect, improves the display quality of liquid crystal indicator.
In order to achieve the above object, in one embodiment of the present invention, this kind of fringe field switch type lcd device comprises a first substrate, gate line and data line are mutually arranged in a crossed manner forms a picture element region on this substrate, thin film transistor (TFT) is arranged on first substrate, wherein this common electrode is that an approximate square or approximate rectangular shape are arranged in picture element region, this pixel electrode is that a loop configuration is arranged on common electrode and with common electrode and partly overlaps, wherein this pixel electrode is connected with thin film transistor (TFT), the pixel electrode collocation structure is arranged at pixel electrode and the non-overlapped district of common electrode, and the pixel electrode collocation structure is connected with pixel electrode, one second substrate is corresponding to the first substrate setting, liquid crystal layer is arranged between first substrate and second substrate.
In one embodiment of the present invention, the pixel electrode collocation structure of this kind of fringe field switch type lcd device more comprises a picture element compensating electrode and a connecting electrode.
In one embodiment of the present invention, the picture element compensating electrode of this kind of fringe field switch type lcd device is arc-shaped electrode or strip electrode.
In one embodiment of the present invention, picture element compensating electrode and the connecting electrode of this kind of fringe field switch type lcd device are transparency electrode.
In one embodiment of the present invention, the pixel electrode of this kind of fringe field switch type lcd device comprises the plurality of electrodes pattern, and those electrode patterns are the concentric rings with different size, this concentric ring is not limited only to donut, can be more concentric rhombus ring or other concentric ring structures.
In one embodiment of the present invention, the electrode pattern of this kind of fringe field switch type lcd device is circle or rhombus.
In another embodiment of the present invention, this kind of fringe field switch type lcd device comprises a first substrate, gate line and data line are mutually arranged in a crossed manner forms a picture element region on this substrate, thin film transistor (TFT) is arranged on first substrate, wherein this pixel electrode is that an approximate square or approximate rectangular shape are arranged in picture element region and are connected with thin film transistor (TFT), this common electrode is that an annular opening structure is arranged on pixel electrode and with pixel electrode and partly overlaps, the common electrode collocation structure is arranged in picture element region and is positioned at the outside of common electrode annular opening, one second substrate is corresponding to the first substrate setting, liquid crystal layer is arranged between first substrate and second substrate.
In another embodiment of the present invention, this kind of fringe field switch type lcd device common electrode collocation structure comprises plurality of openings.
In another embodiment of the present invention, this kind of fringe field switch type lcd device comprises a first substrate, gate line and data line are mutually arranged in a crossed manner forms a picture element region on this substrate, thin film transistor (TFT) is arranged on first substrate, wherein this common electrode is that an approximate square or approximate rectangular shape are arranged in picture element region, this pixel electrode is that a helical structure is arranged on common electrode and with common electrode and partly overlaps, and pixel electrode is connected with thin film transistor (TFT), the pixel electrode collocation structure is arranged at pixel electrode and the non-overlapped district of common electrode, wherein this pixel electrode collocation structure is connected with pixel electrode, one second substrate is corresponding to the first substrate setting, liquid crystal layer is arranged between first substrate and second substrate.
In another embodiment of the present invention, this kind of fringe field switch type lcd device comprises a first substrate, gate line and data line are mutually arranged in a crossed manner forms a picture element region on this substrate, thin film transistor (TFT) is arranged on first substrate, and wherein this pixel electrode is that an approximate square or approximate rectangular shape are arranged in picture element region and are connected with thin film transistor (TFT); This common electrode is that a spiral shaped openings structure is arranged on pixel electrode and partly overlaps with pixel electrode, the common electrode collocation structure is arranged in picture element region and is positioned at the outside of common electrode spiral shaped openings, one second substrate is corresponding to the first substrate setting, and liquid crystal layer is arranged between first substrate and second substrate.
[accompanying drawing explanation]
Fig. 1 is the diagrammatic cross-section of prior art FFS-LCD;
The schematic top plan view of the FFS-LCD electrode structure that Fig. 2 is prior art;
The schematic top plan view of the FFS-LCD electrode structure that Fig. 3 is first embodiment of the invention;
The schematic top plan view that Fig. 4 is the FFS-LCD electrode structure after first embodiment of the invention one distortion;
The schematic top plan view of the FFS-LCD electrode structure that Fig. 5 is second embodiment of the invention;
The schematic top plan view of the FFS-LCD electrode structure that Fig. 6 is third embodiment of the invention;
The schematic top plan view of the FFS-LCD electrode structure that Fig. 7 is four embodiment of the invention;
The schematic top plan view of the FFS-LCD electrode structure that Fig. 8 is fifth embodiment of the invention.
[embodiment]
More all sidedly the preferred embodiments of the present invention are described below with reference to accompanying drawings, at these shown in the drawings of the preferred embodiments of the present invention.But the present invention also can implement with different form, and should not be construed as and only limit to embodiment set forth herein.Yet, provide the purpose of those embodiment to be to make the present invention more detailed complete, and scope of the present invention fully conveyed to those skilled in the art.
The schematic top plan view of the FFS-LCD electrode structure that Fig. 3 is first embodiment of the invention.As shown in Figure 3, gate line 31 along continuous straight runs are arranged on first substrate 30, and data line 32 arranges and forms picture element region P with gate line 31 square crossings.One common electrode 33 is that an approximate square or approximate rectangular shape are arranged in picture element region P.Thin film transistor (TFT) 34 is arranged on the infall of gate line 31 and data line 32 and is connected with data line 32 with gate line 31.Pixel electrode 35 is that a cirque structure is arranged on common electrode 33 and with common electrode 33 and partly overlaps.Wherein pixel electrode 35 comprises plurality of electrodes pattern 351, 352 and 353, and those electrode patterns 351 in this embodiment, 352 and 353 is the donuts with the size of varying in size, wherein electrode pattern 351 diameters of this donut are to be greater than this electrode pattern 352 diameters, electrode pattern 352 diameters of this donut are greater than this electrode pattern 353 diameters, and plurality of electrodes pattern 351, 352 and 353 do not contact and spacing to each other is equidistant setting to each other, system by picture element connecting electrode 36 by plurality of electrodes pattern 351, 352 and 353 are connected to each other, in this explanation spacing, also can be set to not equidistant or approximate.Connect above-mentionedly, this pixel electrode 35 is connected with thin film transistor (TFT) 34 by picture element connecting electrode 36, and wherein pixel electrode 35, and picture element connecting electrode 36 and common electrode 33 are made by transparent conductive material.Corner at picture element region P is provided with pixel electrode collocation structure 37, wherein said corner is pixel electrode 35 and the non-overlapped place of common electrode 33 namely, and show that in this embodiment this corner is upper left, upper right, the lower right area of common electrode 33, wherein the zone, lower-left is thin film transistor (TFT) 34 positions, middle part is pixel electrode 35, furtherly, this pixel electrode collocation structure 37 is arranged on electrode pattern 351 outsides of pixel electrode 35 and is connected with this pixel electrode 35, overlapping with common electrode 33 at this this pixel electrode collocation structure 37.The present invention is by arranging pixel electrode collocation structure 37 in the corner of picture element region P, executing in alive situation, the electric field produced between common electrode 33 and pixel electrode collocation structure 37 can effectively be controlled the orientation of picture element region P corner liquid crystal molecule, overcoming the brightness that in prior art, the disorder of picture element region corner LCD alignment causes shows uneven, particularly the dark state of low GTG shows partially bright defect, thereby improve the display quality of FFS-LCD, obtain better picture display effect.
Connect above-mentioned, in the FFS-LCD of first embodiment of the invention, pixel electrode collocation structure 37 more comprises a picture element compensating electrode 371, 372 and one connecting electrode 373, picture element compensating electrode 371 is connected with pixel electrode 35 by connecting electrode 373 with 372, connecting electrode 373 is to be connected with electrode pattern 351 outsides of pixel electrode 35 in this embodiment, and this connecting electrode 373 cross-over connection picture element compensating electrodes 372 and finally being connected with picture element compensating electrode 371 is inboard, wherein the picture element compensating electrode 371, 372 and connecting electrode 373 by transparent conductive material, make, show that in this embodiment the picture element compensating electrode is arc-shaped electrode, but it is arc-shaped electrode that the present invention does not limit to the picture element compensating electrode, be equally applicable to the present invention as long as can improve the picture element compensating electrode structure of picture element region corner LCD alignment disorder.In the first embodiment of the present invention, the picture element compensating electrode is two, but the present invention does not limit to the quantity of picture element compensating electrode, as long as can improve the compensating electrode quantity of the disorderly defect of picture element region corner LCD alignment, all falls among interest field of the present invention.
The schematic top plan view that Fig. 4 is the FFS-LCD electrode structure after first embodiment of the invention one distortion.As shown in Figure 4, its electrode structure and annexation thereof are identical with the first embodiment, do not repeat them here, and the embodiment of this distortion is different from the first embodiment part and is that picture element compensating electrode 471,472 is for strip electrode.
The above-mentioned two kinds of embodiments of the present invention have only been narrated two kinds of shapes of picture element compensating electrode, but not are limited, as long as can improve all applicable the present invention of picture element compensating electrode of picture element region corner liquid crystal alignment disorder.
The schematic top plan view of the FFS-LCD electrode structure that Fig. 5 is second embodiment of the invention.As shown in Figure 5, gate line 51 along continuous straight runs are arranged on first substrate 50, and data line 52 arranges and forms picture element region P with gate line 51 square crossings.One common electrode 53 is that an approximate square or approximate rectangular shape are arranged in picture element region P.Thin film transistor (TFT) 54 is arranged on the infall of gate line 51 and data line 52 and is connected with data line 52 with gate line 51.Pixel electrode 55 is that a rhombus loop configuration is arranged on common electrode 53 and with common electrode 53 and partly overlaps.Pixel electrode 55 comprises plurality of electrodes pattern 551, 552 and 553, and those electrode patterns 551 in this embodiment, 552 and 553 is the concentric rhombus rings with the size of varying in size, wherein electrode pattern 553 diameters of this concentric rhombus ring are to be greater than this electrode pattern 552 diameters, should be greater than this electrode pattern 551 diameters with electrode pattern 552 diameters of rhombus thimble, and plurality of electrodes pattern 551, 552 and 553 do not contact and spacing to each other is equidistant setting to each other, system by picture element connecting electrode 56 by plurality of electrodes pattern 551, 552 and 553 are connected to each other, in this explanation spacing, also can be set to not equidistant or approximate.Connect above-mentionedly, this pixel electrode 55 is connected with thin film transistor (TFT) 54 by picture element connecting electrode 56, and wherein pixel electrode 55, and picture element connecting electrode 56 and common electrode 53 are made by transparent conductive material.Corner at picture element region P is provided with pixel electrode collocation structure 57, wherein said corner is pixel electrode 55 and the non-overlapped place of common electrode 53 namely, and show that in this embodiment this corner is upper left, upper right, the lower right area of common electrode 53, wherein the zone, lower-left is thin film transistor (TFT) 54 positions, middle part is pixel electrode 55, furtherly, this pixel electrode collocation structure 57 is arranged on electrode pattern 553 outsides of pixel electrode 55 and is connected with this pixel electrode 55, overlapping with common electrode 53 at this this pixel electrode collocation structure 57.The present invention is by arranging pixel electrode collocation structure 57 in the corner of picture element region P, executing in alive situation, the electric field produced between common electrode 53 and pixel electrode collocation structure 57 can effectively be controlled the orientation of picture element region P corner liquid crystal molecule, overcome the brightness that causes of picture element region corner LCD alignment disorder in prior art and show inequality, particularly the dark state of low GTG shows partially bright defect, thereby improve the display quality of FFS-LCD, obtain better picture display effect.
Connect above-mentioned, in the FFS-LCD of second embodiment of the invention, pixel electrode collocation structure 57 more comprises a picture element compensating electrode 571,572 and a connecting electrode 573, picture element compensating electrode 571 is connected with pixel electrode 55 by connecting electrode 573 with 572, connecting electrode 573 is to be connected with electrode pattern 553 outsides of pixel electrode 55 in this embodiment, and this connecting electrode 573 cross-over connection picture element compensating electrodes 572 and finally being connected with picture element compensating electrode 571 is inboard, wherein picture element compensating electrode 571,572 and connecting electrode 573 are made by transparent conductive material.The picture element compensating electrode is strip electrode in this embodiment, but not is limited, as long as can improve all applicable the present invention of picture element compensating electrode of picture element region corner liquid crystal alignment disorder.In this embodiment of the present invention, the picture element compensating electrode is two, but the present invention does not limit to the quantity of picture element compensating electrode, as long as can improve the compensating electrode quantity of the disorderly defect of picture element region corner LCD alignment, all falls among interest field of the present invention.
The schematic top plan view of the FFS-LCD electrode structure that Fig. 6 is third embodiment of the invention.As shown in Figure 6, gate line 61 along continuous straight runs are arranged on first substrate 60, and data line 62 arranges and forms picture element region P with gate line 61 square crossings.One common electrode 63 is that an approximate square or approximate rectangular shape are arranged in picture element region P.Thin film transistor (TFT) 64 is arranged on the infall of gate line 61 and data line 62 and is connected with data line 62 with gate line 61.Pixel electrode 65 is that a helical structure is arranged on common electrode 63 and with common electrode 63 and partly overlaps.Wherein pixel electrode 65 and common electrode 63 makes by transparent conductive material.Corner at picture element region P is provided with pixel electrode collocation structure 67, wherein said corner is pixel electrode 65 and the non-overlapped place of common electrode 63 namely, and show that in this embodiment this corner is upper left, upper right, the lower right area of common electrode 63, wherein the zone, lower-left is thin film transistor (TFT) 64 positions, middle part is pixel electrode 65, furtherly, this pixel electrode collocation structure 67 is arranged on the outside of this helical structure pixel electrode 65 and is connected with this pixel electrode 65, overlapping with common electrode 63 at this this pixel electrode collocation structure 67.The present invention is by arranging pixel electrode collocation structure 67 in the corner of picture element region P, executing in alive situation, the electric field produced between common electrode 63 and pixel electrode collocation structure 67 can effectively be controlled the orientation of picture element region P corner liquid crystal molecule, overcome the brightness that causes of picture element region corner LCD alignment disorder in prior art and show inequality, particularly the dark state of low GTG shows partially bright defect, thereby improve the display quality of FFS-LCD, obtain better picture display effect.
Connect above-mentioned, in the FFS-LCD of third embodiment of the invention, pixel electrode collocation structure 67 more comprises a picture element compensating electrode 671,672 and a connecting electrode 673, picture element compensating electrode 671 is connected with pixel electrode 65 by connecting electrode 673 with 672, connecting electrode 673 is to be connected with pixel electrode 65 in this embodiment, and this connecting electrode 673 cross-over connection picture element compensating electrodes 672 and finally being connected with picture element compensating electrode 671 is inboard, wherein picture element compensating electrode 671,672 and connecting electrode 673 are made by transparent conductive material.The picture element compensating electrode is arc-shaped electrode in this embodiment, but not is limited, as long as can improve all applicable the present invention of picture element compensating electrode of picture element region corner liquid crystal alignment disorder.In this embodiment of the present invention, the picture element compensating electrode is two, but the present invention does not limit to the quantity of picture element compensating electrode, as long as can improve the compensating electrode quantity of the disorderly defect of picture element region corner LCD alignment, all falls among interest field of the present invention.
The schematic top plan view of the FFS-LCD electrode structure that Fig. 7 is four embodiment of the invention.As shown in Figure 7, gate line 71 along continuous straight runs are arranged on first substrate 70, and data line 72 arranges and forms picture element region P with gate line 71 square crossings.One pixel electrode 73 is that an approximate square or approximate rectangular shape are arranged in picture element region P.Thin film transistor (TFT) 74 is arranged on the infall of gate line 71 and data line 72 and is connected with data line 72 with gate line 71.In picture element region P, common electrode 75 is that an annular opening structure is arranged on pixel electrode 73 and with pixel electrode 73 and partly overlaps.Common electrode 75 comprises a plurality of annular openings 751 and 752, and annular opening 751 is arranged on the outside of annular opening 752, and wherein common electrode 75 and pixel electrode 73 are made by transparent conductive material.At the corner of picture element region P, common electrode collocation structure 77 is arranged on the outside of common electrode 75 annular openings.And show that in this embodiment this corner is upper left, upper right, the lower right area of common electrode 75, wherein the zone, lower-left is thin film transistor (TFT) 74 positions, middle part is pixel electrode 73, furtherly, this pixel electrode collocation structure 77 is arranged on the outside of these common electrode 75 annular openings 751.
In the FFS-LCD of four embodiment of the invention, common electrode collocation structure 77 more comprises an arc opening, and this arc opening is arranged on the outside of common electrode 75 annular openings 751.Due to the existence of common electrode collocation structure 77, to execute in alive situation, the liquid crystal molecule that is positioned at picture element region P corner can effectively be subject to the control of electric field.The open amount that the common electrode collocation structure comprises in the present invention and shape are not limited by present embodiment, as long as can reach, improve the purpose that the picture element corner goes out the LCD alignment disorder.
The present invention is by arranging common electrode collocation structure 77 in the corner of picture element region P, executing in alive situation, the electric field produced between pixel electrode 73 and common electrode collocation structure 77 can effectively be controlled the orientation of picture element region P corner liquid crystal molecule, overcome the brightness that causes of picture element region corner LCD alignment disorder in prior art and show inequality, particularly the dark state of low GTG shows partially bright defect, thereby improve the display quality of FFS-LCD, obtain better picture display effect.
The schematic top plan view of the FFS-LCD electrode structure that Fig. 8 is fifth embodiment of the invention.As shown in Figure 8, gate line 81 along continuous straight runs are arranged on first substrate 80, and data line 82 arranges and forms picture element region P with gate line 81 square crossings.One pixel electrode 83 has an approximate square or approximate rectangular shape is arranged in picture element region P.Thin film transistor (TFT) 84 is arranged on the infall of gate line 81 and data line 82 and is connected with data line 82 with gate line 81.In picture element region P, common electrode 85 is that a spiral shaped openings structure is arranged on pixel electrode 83 and with pixel electrode 83 and partly overlaps.Wherein common electrode 85 comprises a spiral shaped openings 851, and common electrode 85 and pixel electrode 83 are made by transparent conductive material.At the corner of picture element region P, common electrode collocation structure 87 is arranged on the outside of common electrode 85 spiral shaped openings.
In the FFS-LCD of fifth embodiment of the invention, common electrode collocation structure 87 more comprises a plurality of arc openings 871 and 872, those arc openings 871 and 872 are arranged at the outside of common electrode 85 arc openings 851, and arc opening 871 is positioned at the outside of arc opening 872.Due to the existence of common electrode collocation structure 87, to execute in alive situation, the liquid crystal molecule that is positioned at picture element region P corner can effectively be subject to the control of electric field.The open amount that the common electrode collocation structure comprises in the present invention and shape are not limited by present embodiment, as long as can reach, improve the purpose that the picture element corner goes out the LCD alignment disorder.
The present invention is by arranging common electrode collocation structure 87 in the corner of picture element region P, executing in alive situation, the electric field produced between pixel electrode 83 and common electrode collocation structure 87 can effectively be controlled the orientation of picture element region P corner liquid crystal molecule, overcome the brightness that causes of picture element region corner LCD alignment disorder in prior art and show inequality, particularly the dark state of low GTG shows partially bright defect, thereby improve the display quality of FFS-LCD, obtain better picture display effect.
In the above-described embodiments, only the present invention has been carried out to exemplary description, but those skilled in the art can carry out various modifications to the present invention without departing from the spirit and scope of the present invention after reading present patent application.
Claims (21)
1. a fringe field switch type lcd device, it comprises:
One first substrate;
One gate line, it is arranged on described first substrate;
One data line, it is arranged on described first substrate, and mutually intersects and form a picture element region with described gate line;
One thin film transistor (TFT), it is arranged on described first substrate, and is connected with data line with described gate line;
One common electrode, it is arranged on first substrate and is positioned at described picture element region;
One pixel electrode, it is that a loop configuration is arranged on described common electrode and with described common electrode and partly overlaps, and described pixel electrode is connected with described thin film transistor (TFT);
One pixel electrode collocation structure, it is arranged at described pixel electrode and described common electrode in the non-overlapped district that is positioned at described picture element region corner, and described pixel electrode collocation structure is connected with described pixel electrode, wherein, executing in alive situation, the electric field produced between common electrode and pixel electrode collocation structure can effectively be controlled the orientation of picture element region corner liquid crystal molecule, thereby improves the defect of picture element region corner LCD alignment disorder;
One second substrate, it is corresponding to described first substrate setting;
One liquid crystal layer, it is arranged between described first substrate and described second substrate.
2. fringe field switch type lcd device as claimed in claim 1, wherein said pixel electrode collocation structure comprises a picture element compensating electrode and a connecting electrode.
3. fringe field switch type lcd device as claimed in claim 2, wherein said picture element compensating electrode is arc-shaped electrode.
4. fringe field switch type lcd device as claimed in claim 2, wherein said picture element compensating electrode is strip electrode.
5. fringe field switch type lcd device as claimed in claim 2, wherein said picture element compensating electrode is to be connected with described pixel electrode by described connecting electrode.
6. fringe field switch type lcd device as claimed in claim 1, upper left, lower-left, upper right and the zone, four of bottom rights that wherein said pixel electrode collocation structure is arranged at common electrode wherein three.
7. fringe field switch type lcd device as claimed in claim 1, wherein said pixel electrode comprises the plurality of electrodes pattern, and those electrode patterns are the concentric rings with different size.
8. fringe field switch type lcd device as claimed in claim 7, wherein said electrode pattern is circular.
9. fringe field switch type lcd device as claimed in claim 7, wherein said electrode pattern is rhombus.
10. a fringe field switch type lcd device, it comprises:
One first substrate;
One gate line, it is arranged on described first substrate;
One data line, it is arranged on described first substrate, and mutually intersects and form a picture element region with described gate line;
One thin film transistor (TFT), it is arranged on described first substrate, and is connected with data line with described gate line;
One pixel electrode, it is arranged in described picture element region and is connected with described thin film transistor (TFT);
One common electrode, it is that an annular opening structure is arranged on described pixel electrode and with described pixel electrode and partly overlaps;
One common electrode collocation structure, it is arranged in described picture element region and is positioned at the outside of described common electrode annular opening, wherein, executing in alive situation, the electric field produced between pixel electrode and common electrode collocation structure can effectively be controlled the orientation of picture element region corner liquid crystal molecule, thereby improves the defect of picture element region corner LCD alignment disorder;
One second substrate, it is corresponding to described first substrate setting;
One liquid crystal layer, it is arranged between described first substrate and described second substrate.
11. fringe field switch type lcd device as claimed in claim 10, wherein said common electrode collocation structure comprises plurality of openings.
12. fringe field switch type lcd device as claimed in claim 10, upper left, lower-left, upper right and the zone, four of bottom rights that wherein said common electrode collocation structure is arranged at common electrode wherein three.
13. a fringe field switch type lcd device, it comprises:
One first substrate;
One gate line, it is arranged on described first substrate;
One data line, it is arranged on described first substrate, and mutually intersects and form a picture element region with described gate line;
One thin film transistor (TFT), it is arranged on described first substrate, and is connected with data line with described gate line;
One common electrode, it is arranged on described first substrate and is positioned at described picture element region;
One pixel electrode, it is that a helical structure is arranged on described common electrode and with described common electrode and partly overlaps, and described pixel electrode is connected with described thin film transistor (TFT);
One pixel electrode collocation structure, it is arranged at described pixel electrode and the non-overlapped district of described common electrode, and described pixel electrode collocation structure is connected with described pixel electrode, wherein, executing in alive situation, the electric field produced between common electrode and pixel electrode collocation structure can effectively be controlled the orientation of picture element region corner liquid crystal molecule, thereby improves the defect of picture element region corner LCD alignment disorder;
One second substrate, it is corresponding to described first substrate setting;
One liquid crystal layer, it is arranged between described first substrate and described second substrate.
14. fringe field switch type lcd device as claimed in claim 13, wherein said pixel electrode collocation structure comprises a picture element compensating electrode and a connecting electrode.
15. fringe field switch type lcd device as claimed in claim 14, wherein said picture element compensating electrode is arc-shaped electrode.
16. fringe field switch type lcd device as claimed in claim 14, wherein said picture element compensating electrode is strip electrode.
17. fringe field switch type lcd device as claimed in claim 14, wherein said picture element compensating electrode is to be connected with described pixel electrode by described connecting electrode.
18. fringe field switch type lcd device as claimed in claim 13, upper left, lower-left, upper right and the zone, four of bottom rights that wherein said pixel electrode collocation structure is arranged at common electrode wherein three.
19. a fringe field switch type lcd device, it comprises: a first substrate;
One gate line, it is arranged on described first substrate;
One data line, it is arranged on described first substrate, and mutually intersects and form a picture element region with described gate line;
One thin film transistor (TFT), it is arranged on described first substrate, and is connected with data line with described gate line;
One pixel electrode, it is arranged in described picture element region and is connected with described thin film transistor (TFT);
One common electrode, it is that a spiral shaped openings structure is arranged in described picture element region and described pixel electrode partly overlaps;
One common electrode collocation structure, it is arranged in described picture element region and is positioned at the outside of described common electrode spiral shaped openings, wherein, executing in alive situation, the electric field produced between pixel electrode and common electrode collocation structure can effectively be controlled the orientation of picture element region corner liquid crystal molecule, thereby improves the defect of picture element region corner LCD alignment disorder;
One second substrate, it is corresponding to described first substrate setting;
One liquid crystal layer, it is arranged between described first substrate and described second substrate.
20. fringe field switch type lcd device as claimed in claim 19, wherein said common electrode collocation structure comprises plurality of openings.
21. fringe field switch type lcd device as claimed in claim 19, upper left, lower-left, upper right and the zone, four of bottom rights that wherein said common electrode collocation structure is arranged at common electrode wherein three.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100219867A CN102135690B (en) | 2011-01-19 | 2011-01-19 | Edge electric filed switching type liquid crystal display device |
| TW100113590A TWI453514B (en) | 2011-01-19 | 2011-04-19 | Fringe field switching mode liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100219867A CN102135690B (en) | 2011-01-19 | 2011-01-19 | Edge electric filed switching type liquid crystal display device |
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| CN108447871B (en) * | 2018-03-13 | 2020-12-25 | 深圳市华星光电半导体显示技术有限公司 | Pixel unit, manufacturing method thereof and display device |
| CN109659327B (en) * | 2019-02-27 | 2021-02-05 | 京东方科技集团股份有限公司 | Array substrate, display panel and display device |
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| CN1607441A (en) * | 2003-10-16 | 2005-04-20 | Lg.菲利浦Lcd株式会社 | Array substrate of in-plane switching type liquid crystal display and its manufacturing method |
| CN1627160A (en) * | 2003-12-11 | 2005-06-15 | Lg.菲利浦Lcd株式会社 | Array substrate for in-plane switching mode liquid crystal display device and method of fabricating the same |
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| US7304709B2 (en) * | 2003-12-12 | 2007-12-04 | Lg. Philips Lcd Co., Ltd. | Fringe field switching mode liquid crystal display device and method of fabricating the same |
| KR100603829B1 (en) * | 2003-12-12 | 2006-07-24 | 엘지.필립스 엘시디 주식회사 | Fringe Field Switching Mode Liquid Crystal Display Device |
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| CN1607441A (en) * | 2003-10-16 | 2005-04-20 | Lg.菲利浦Lcd株式会社 | Array substrate of in-plane switching type liquid crystal display and its manufacturing method |
| CN1627160A (en) * | 2003-12-11 | 2005-06-15 | Lg.菲利浦Lcd株式会社 | Array substrate for in-plane switching mode liquid crystal display device and method of fabricating the same |
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| CN102135690A (en) | 2011-07-27 |
| TWI453514B (en) | 2014-09-21 |
| TW201232129A (en) | 2012-08-01 |
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